The Best Athletes

A tennis star who made Grand Slam victories a habit is the cream of an elite crop

1. Roger Federer

Fifteen Grand Slam titles; ranked No. 1 for a record 237 consecutive weeks

2. Tiger Woods

Twelve major championships; first athlete with $1 billion in earnings

3. Lance Armstrong

(above) Winner of decade's first six Tours de France

4. Michael Phelps

With 14 gold medals, the most decorated Olympian ever

5. Kobe Bryant